/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package Servlets;

import EBInterface.AirlineSystemRemote;
import java.io.*;
import java.util.*;
import javax.naming.*;
import javax.servlet.ServletException;
import javax.servlet.http.*;

/**
 *
 * @author JonasF
 * Handles the call from HttpHandler and handels the FindTrip request by calling
 * the session AirlineSystemBean and redirects to the right JSPX-page
 */
public class FindTrip extends HttpServlet {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            //collects all data needed for the AirlineSystemBean to collect the
            //right data from the data base
            Date d = new Date(request.getParameter("date"));
            String dep = request.getParameter("departure");
            String dest = request.getParameter("destination");
            int nrPassenger = Integer.parseInt(request.getParameter("nrP"));

            AirlineSystemRemote ASB = lookupAirlineSystemBean();

            ASB.findFlights(d, dep, dest, nrPassenger);
            //Go to JSP result page

        }

        finally {
            out.close();
        }
        //redirects to the right JSPX
        response.sendRedirect("FindBestTripResult.jspx");
    }

    private AirlineSystemRemote lookupAirlineSystemBean(){
        try {
            Context c = new InitialContext();
            return (AirlineSystemRemote) c.lookup("java:comp/env/AirlineSystemBean");
        } catch (NamingException ne) {
            java.util.logging.Logger.getLogger(getClass().getName()).log(java.util.logging.Level.SEVERE, "exception caught", ne);
            throw new RuntimeException(ne);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
